Bathroom Exhaust Fan Through Roof Or Soffit. As the warm moist air leaves the bathroom through a soffit it leaves in a downward motion. And while both a roof vent and an overhang vent perform this task there is one big difference. In other cases it can be difficult to vent a second story bathroom to the side of the house.
Vent your bath and kitchen exhaust fans through the roof through a special roof hood. The 2nd bathroom vent drips on the floor and is ruining the ceiling.
I have gotten mixed opinions on whether to vent the new fan through the roof or through the soffit eave.
Sometimes bathroom fan soffit vent fan is the easiest solution because you have easy access in the attic and you don t have to climb onto the roof. The 2 pipes one a 4 master and the other a 3 2nd do not go through the ceiling but into a common box that goes through the roof. The bathroom exhaust should never be vented anywhere near nor through the soffit area. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.
